Dual Reactivity Pattern of Allenolates “On Water”: The Chemical Basis for Efficient Allenolate-Driven Organocatalytic Systems
作者:David González-Cruz、David Tejedor、Pedro de Armas、Fernando García-Tellado
DOI:10.1002/chem.200700227
日期:2007.6.4
A study of the reactivity pattern associated with zwitterionic allenolates "on water" is reported. This study establishes the chemical basis for two organocatalyzed allenolate-driven reaction networks operating "on water". The first one is a chemodifferentiating three building block (ABB') three-component reaction (ABB' 3CR) manifold comprising terminal alkynoates and aldehydes. The manifold produces
报道了与两性离子烯丙基酯“在水上”有关的反应性模式的研究。这项研究建立了两个在水上运行的有机催化的烯丙基酯驱动的反应网络的化学基础。第一个是包含末端链烷酸酯和醛的化学微分三构件(ABB')三组分反应(ABB'3CR)歧管。歧管生产的炔丙基烯醇醚3的平均效率高于其在有机溶剂中的同系物。第二个是在叔胺或膦存在下,炔酸与硝酮反应引发的新型有机催化体系。末端链烷酸酯提供2,3,5-三取代的2,3-二氢异恶唑5和炔丙基N-羟胺6,内部链烷酸酯选择性提供2,3,4,